Tire construction.



A. R. FIERGUSSON.

TIRE CONSTRUCTION. APPLICATION FILED APR.29, I916.

Patented Jan. 29, 19B.

einen n. rnne'ussegu, es emesso, intriso-is.

einer. consentement.

Speccetienbf Letters Patent.

" Patented Jun. 1318.

Application 'ledilpri 29, 191%; Serial No. 94,315.

To all whom it' may concern:

Be it known that I. ALAN R. Fnnc-Usson,

'ecitizen of the United States, residing at i Chicago, in the countyA of Cook and State of lllinois, have invented a new and useful Tire Construction, of which the following is the;

specification. r

This invention relates to rubber articles and particularly to the manufacture of sheets of united rubber and fabric .and c combination of such sheets 4contorni various articles of manufacture such es tires7 or-the like.

An object orp the invention is to devise a method and means of uniting rubber vinto e multiple ply of combined rubber and fabric in such c wey as to forni practically homol geneous sheets which cannot be split spart or seperated', und further to unite these sheetstogether by vuleunir/.ing to build up a tire or other article, the vulcnnizing in an article so manufactured being that of rubber to rubber instead of rubber to Jrubric. es is now sometimes necessary.

ln making rubber tires for instance, the

tread which generally consists of rubber is noiv customeril7 vulcanized to u fabric loyer on the outside oi the incomplete tire. This method isobjectionable for the rec on thnt it is impossible to ineke rubber sstisiuctorily adhere to fabric, inasmuch as the rubber will not unite with the fubrlc,- but is simply Figure l is a cross-sectional View of a tire mede according to my invention.

Fig. 2 is e perspective vievv of e sheet of combined rubber und fabric .mede according* to my invention.

3 is e cross-sectional 4view ci said sheet. -j l t l represents a layer of fabric upon "each side of which is laid r. layerQ' oil' rubber, the rubber being very thoroughly stitched through the febrile, us indicated, so that the stitchings pese over the rubber on both sides A tire K 'claim of the fabric and through the fabric. lvl/hen the sheet according to Fig. 2 has been made und sewn7 ."ulcuuized, the vulcanizing' 'process czrusingy the. rubber to follow the threads employed in stitching through the fabric so that to ull intents und purposes the twosheets of rubber are united and become integral' one 'with the other, andv edhere together as closely forall practical pu'- 6 poses as they would were no loyer of fabric interposed between them.. l ln melting a tire, l build up the inner por# tion 3 thereof troni :i plurality of such sheets vulcanized together, it being particularly' noted that the vulcunizng process acts to vulcanize'rubber to rubber each time thus making: u homogeneous uniform connection, having no vjunction therein susceptible to cleavage.

The rubber tread s is next vulcanized upon u tire, it being again noted that thellfulcanizution is of rubber to rubber so that the rub ber tread becomes as rmly united to thebody ot' the tire as it would be were thsftv'vo made ot' one piece ot rubber. lnesmuch es in a tire so constructed there isno junction 'or' rubber to canvas between the treed and body' ot the tire7 bruises will not cause u' cleavage. of the tread away from the body of the tire und blisters cannot be formed'. A tire" so constructed has all the unifoirntl and adhesive strength oli-solid rubber;loe'y sides having the advantage in cheapness end' general strength ofi a. tire4 reinforced end 9 strengthened by layers of canvas. Y 0f course l do not Wish to limit myself to successive vulcanization of thl respective y layers of the tire und the tread, it being sometimes practicable to perform the entire vulcanizing operation at once'fwherebythe layers of the tire und the tread will `ull be vulcanized in one operation and together.`

Having now described my invent-ion; I

l. A tire comprising; e. body portion hav-l ing a composite sheet therein consisting of a layer of rubber both vulcanized und stitched to a layerof fabric, und a. second layer of rubber vulcanized to said irstluyer,` rubber to rubber throughout its area, Where'- by the second layer Willbe firmly attached to the first layer und the danger of blistering betwen the layers to e. large extent' eliminate 2. tire consisting of a plurality of suberposed seperete composite sheets, earch sheea being made up of a layer of fabric having e layer of rubber stitched i od vulcanized ou each sife rhereof, the said stiizching being coni-ined to each sheet sepa rmey, Said. sheets being vulcanized together rubber 'to rubber, and :i covering portion aifi eomperaivey thick tread vulcanized to the ofuiermos' Said layer so as to be attached hereo rubber to robber.1

f rire eoneising of a body portion, f :oiiiposite therein consisting a layer of fabric with :i layer of rubber svlehed; and vulcanized upon each Side hereof, the stitehing being conned 4co said eompossite sheet, and a tread portion of rubber vulcanized o one of said sheets of rubber throughout its area, whereby the tread Will be firmly' attached to the tire, substantially as described.

Li Witness whereof, if hereunto subscribe my name to this specification in the presence or' two witnesses.

ALAN R. FERGUSSON.'

VVitnesseS z SEBASTIAN AUSTON, I. V. CURRAN. 

